Check the listing for details. Vivitar VIV-SF-3000 Digital Slave Flash. Condition: Used. Listed at 14.95 USD. You are bidding on a barely used (if at all) Vivitar VIV-SF-3000 Digital Slave Flash. Box is rough shape. Free shipping! Thanks for bidding! Capture clearly illuminated pictures, even under low light conditions, using the Vivitar SF-3000 with your camera. This Vivitar camera flash has a guide number of 110, which ensures that even a distant subject is adequately illuminated. Featuring four slave modes, this shoe mount flash also functions smoothly with cameras with a built-in flash. Moreover, the Vivitar SF-3000 weighs only 0.34 lbs, thus ensuring maximum portability due to its lightweight design. Powered by two AA batteries, this shoe mount flash can be used for a long period of time. All in all, this Vivitar camera flash makes for a great addition to your camera kit.